Brightly coloured sea cucumber with hues of blue, red and violet. This bright colour advertises its toxicity to potential predators. It has a stout, cylindrical body with the oral end turned up and tapering. A ring of feathery tentacles line the feeding area.
Scientific name: Pseudocolochirus axilogus
Common name: Sea apple
Size: Largest specimen recorded measured 125mm dorsally and 325mm ventrally
Found in the Pacific Ocean along Australian waters.
They occur on reefs and in coastal areas where they can be found on hard substrates. They attach to substrates in areas of high flow and can remain in the same spot for long periods of time.
Sea apples are filter feeders and use their tentacles to feed on suspended planktonic food particles in the water. Once they have captured the food, they draw the entire tentacle into their mouths.
They have separate sexes and practice sexual reproduction. Males release sperm and females release eggs into the water. They unite and the larvae develop which eventually grow into adults.
Due to their beautiful colours and interesting appearance, they are widely sought after for public and private aquaria.
Marine Species Identification Portal